- The Packer Gear STP Packer is the unique packer designed with a hollow shaft and wide opening for Female-to-male (FTM) Stand-to-pee functionality. Designed with function and comfort in mind, the sculpted shape fits into your favorite harness and a stretchy silicone flexes with the body. The soft, pliable silicone, life-like feel and ivory skin tone make it the perfect probe for all-day wear. The hypoallergenic premium silicone is body safe, unscented and phthalate free to keep you most sensitive spots, happy and healthy. - Before and after use, wash with soap and warm water and then spray with a Universal Toy Cleaner. Dimensions: Package: 2 x 4 x 8.5 in. Packer: 6 x 3 in.