Choosing a TREMBLR spare starts with two questions: which size are you using, and which parts do you need? A Receiver already contains its matching Silicone Sleeve. A Receiver Kit adds the Receiver Cap. If you only need to replace the flexible Sleeve, it is also available separately.
Here is how the names, sizes and components fit together.
M, L and XL Receiver specifications
| Receiver size | Published Receiver dimensions | Matching Silicone Sleeve |
|---|---|---|
| M | Ø34 × 127 mm | M |
| L | Ø40 × 152 mm | L |
| XL | Ø47 × 191 mm | XL |
These are the published Receiver specifications. They are not a body-measurement chart. If you are choosing your first Receiver and need help with the size, contact TREMBLR support before ordering.
M, L and XL refer to the Receiver and matching Silicone Sleeve. There is one TREMBLR machine configuration; there are no separate M, L or XL TREMBLR machines.
What comes with each product?
| Product or component | What it includes | When to look at it |
|---|---|---|
| Receiver | Receiver Shell with its matching Silicone Sleeve already installed | You need a Receiver in a particular size |
| Silicone Sleeve | The replaceable flexible Sleeve for the corresponding Receiver size | You are replacing the Sleeve in an existing Receiver |
| Receiver Kit | One Receiver, including its matching Sleeve, plus one Receiver Cap | You want a Receiver and Cap together |
| Receiver Cap | The Cap used with the Receiver, Sleeve and valve to maintain the closed air circuit | You need the Cap as a separate replacement |
The Receiver Shell is a component of the Receiver, rather than a separately sold product. A Receiver Kit therefore includes the Sleeve inside the Receiver; it is not an empty Shell and Cap.
View Receivers · View Silicone Sleeves · View Receiver Kits · View Receiver Caps
Buying a complete TREMBLR machine
The standard TREMBLR contents include one M Receiver, one L Receiver and one XL Receiver, each with its matching Silicone Sleeve installed, plus the corresponding Receiver Caps. A 2 m Receiver Hose is also included.
Keep that in mind when comparing the machine with separately sold accessories. A Receiver Kit is a single-size accessory product, while the standard machine includes all three Receiver sizes.
See TREMBLR and its included components
Replacing a Silicone Sleeve
Match the Sleeve size to the Receiver size: M with M, L with L and XL with XL. If you are unsure which Receiver you already have, ask support to help identify it before ordering a replacement.
Keep the Receiver and replacement Sleeve in the same size. Mixed-size or third-party combinations are not recommended as an alternative to the matching parts; their compatibility, sealing and pneumatic feedback have not been confirmed.
For cleaning, separate the Receiver from the machine and Hose. Allow the Receiver, Cap and Silicone Sleeve to dry fully before reconnecting or storing them, and keep water out of the Hose and machine. The TREMBLR support page has the relevant manuals and maintenance information.
Keep the different size systems separate
Receiver M, L and XL describe the pneumatic Receiver and Sleeve sizes. The S, M, L, XL and 2XL options for 525 Shorts and 525 Shorts Pro belong to a separate clothing size range. A Shorts size does not select a Receiver size.
Both Shorts products are separately purchased TREMBLR Receiver accessories. They are not part of the standard machine contents, and they do not belong to the ALPHA, PRO4 or GIGOLO mechanical attachment range.
Common questions
Does a Receiver include a Silicone Sleeve?
Yes. A Receiver is the Shell and its matching Silicone Sleeve, supplied with the Sleeve already installed.
What does a Receiver Kit add?
A Receiver Kit contains one Receiver and one Receiver Cap. The Sleeve is already included in the Receiver. Choose M, L or XL according to the Receiver size you need.
Can I buy just the Sleeve?
Yes. Silicone Sleeves are available separately in M, L and XL. Choose the size that matches the Receiver you own.
Can I connect an ordinary masturbator or a mechanical attachment?
TREMBLR uses its dedicated Receiver, Sleeve, Cap and Hose system. It is not compatible with ordinary masturbators, mechanical push rods, Quick Connect or Vac-U-Lock attachments.
Is the longer Hose part of the standard package?
The standard Receiver Hose is 2 m long. A 4 m Hose is a separately sold option.
What if I still do not know which parts to order?
Contact support with the parts and sizes you already have, and explain whether you need a replacement Sleeve, a Receiver or a Receiver with Cap. That will help us check the correct product before you order.