Model E STP: Compact Stand-to-Pee Packer by Number One Laboratory

The smallest STP we carry, handmade for shorter folks, younger users, and anyone who needs a more compact fit.

The Model E STP is the most compact stand-to-pee device we carry. It has a 3-inch shaft made for smaller frames, shorter folks, and anyone who's always found standard STPs too big. Made by Number One Laboratory from 100% body-safe platinum silicone with a soft powder finish. The matte outside cuts down on chafing and gets rid of that sticky silicone feel on your skin. Every single one is handmade and checked by hand.

If you're looking for a mini packer rather than an STP and want more skin tone options, check out the Lil Buddy 3" Packer.

💪 Bulge Rating: 2 / 5

A small, low-key bulge that's in proportion with smaller frames and shorter folks. Use the TGS Bulge Rating Guide to compare every STP and packer in the lineup.

---

📐 Product Details

Brand: Number One Laboratory, maker of handmade STPs for the trans community
Material: 100% Body-Safe Platinum Silicone with soft powder finish

• Shaft Length: 3 inches
• Width: 1.25 inches
• Height (base of balls to top of shaft): 3 inches
• Soft powder matte finish: less chafing, less tacky silicone feel
• Completely handmade: each one finished and checked by hand
• Boilable and dishwasher safe (top rack) for full sterilization
• STP + pack function: small enough for daily packing on a smaller frame

We still recommend a light dusting of Packer Renewing Powder for long-term storage even with the powder finish.

---

🩲 Best Pairings

• Slingshot Harness: Number One Laboratory's own thigh harness, made for their STP line, Model E included
• Cake Bandit Harness: holds it in place under any underwear
• STP Briefs, STP Boxer Briefs, or STP Jock: a working fly keeps the Model E where it belongs

---

🧼 Care & Cleaning

Platinum silicone is non-porous and easy to fully sterilize. Clean using any of the following:

• Hot water and soap: your everyday after-use clean
• TGS Packer & Toy Cleaner: fast and gentle, and it conditions the silicone
• Boil for 3–5 minutes: full sterilization
• Top rack dishwasher: no detergent needed

Air-dry completely before storing. For long-term storage, dust lightly with Packer Renewing Powder to maintain the soft surface finish. Store in a cool, dry place out of direct sunlight.

Water-based lube only. Do not use silicone-based lubricants. They break down platinum silicone over time.

---

🚿 First-Time Use Tips

Every STP device handles a little differently. Even if you've used others before, give yourself a few tries at home to find where the Model E sits best. Practice in these stages:

1. Shower, water off: practice the seal with no clothes on so you can easily spot any leaks
2. Toilet, no clothing: build muscle memory for where the cup goes
3. Underwear on: the Slingshot Harness or Cake Bandit STP underwear holds the Model E right where it should be
4. Fully dressed: once you're staying dry at home every time with clothes on, you're ready to use it out in the world

For the full technique guide, read our Complete STP Guide.

---

❓ FAQ

Who is the Model E designed for?
Anyone who needs a smaller STP: shorter folks, smaller frames, younger users, or anyone who's found standard STPs too big. At 3 inches, it's the most compact device in our lineup.

Is this good for beginners?
Yes. The small size and powder finish make it comfy to wear and easy to learn on. If you're completely new to STPs, also read our Complete STP Guide before your first use.

What's the difference between this and the Lil Buddy?
The Lil Buddy 3" Packer is just a soft packer. It gives you a bulge, but you can't pee through it. The Model E is a fully functional stand-to-pee device. If you want STP function in the smallest possible size, this is the one.

---

📦 Shipping & Returns

Orders typically ship within 1–3 business days in plain, unmarked packaging from our shipping dept. No logos, no product names, nothing that gives away what's inside. Learn more about our discreet shipping promise.

All sales of STPs, packers, harnesses, pleasure toys, swimwear, and underwear are final due to legal restrictions. See our full Returns & Refund Policy.

All international orders are final sale. Local taxes, duties, and customs fees are the customer's responsibility. See Shipping Policies.