Model E STP - 3"

by Number One Laboratories


This is the absolutely smallest STP on the market. Designed specifically for FTM trans youth (ages 8 - 13) this STP is made from 100% body safe platinum silicone with a powder soft finish. The outer silicone 'skin' has a clean, soft matte texture which is designed to help reduce chafing and remove tacky silicone feel. 


Number One Laboratory* STPs are made from Platinum Silicone with a soft powder finish. Every model sold is completely handmade using the best materials available and thoroughly checked for quality and durability. 

- Shaft Length: 3"  
- Width: 1.25" - 3.2 cm. 
- Height (from below balls to top of shaft): 3"

Platinum silicone may be cleaned using any one of the following methods.
- Hot water and soap
- Diluted bleach
- Overnight denture cleaning tablets
- Boil for 3-5 minutes


Note for first-time users, we strongly recommend that you practice in the shower before attempting to use in public. Even if you have had success with other STPs in the past, every STP is different and requires some getting used to. 

*This company used to be called Form Function 


Customer Reviews

Based on 6 reviews
Edwin S.

Oh my gosh hey Sunny! I’m 11 and Trans too :) I asked my mom by getting a gift card for tgs and bought the smallest packer I could find. If you want to just straight up tell her though I suggest telling her why it’d make you happier to buy it and would make you more comfortable in your own skin!!


I would start by explaining why you need it (dysphoria, urinals, packing, etc) and then explain to her what it is. You could also write an email if that's easier. It'll probably be uncomfortable, but even if you were cis, she would have seen your penis as a baby anyway.


Yes my mom does know and is very supportive but it was really inappropriate and I think when my mom first looked at it she’ll be like what the hell

Hi Sunny!

Does your mom know you are trans? If not you might need to come out to her first.

Tips on how to ask my mom

Hi i really want to get this but I don’t know how to ask my mom I’m 11 and if you have any tips i would be really happy


You can expect your order to ship within 2-3 business days after purchase. Print to order items, such as t-shirts, will sometimes take longer and will ship separately.

Final Sales

Please note that due to the sensitive nature of the items in question, all STP, Packer, Harness, and Underwear sales are final. Please make sure you have double-checked product size guides and have selected the correct item.

International Orders

Please note that for all non-US orders, you may be charged local taxes in order to retrieve your order. See our Shipping Policies for more details.