An 'STP' or a 'stand-to-pee' device allows you to pee standing up.
Some people use STPs to help curb gender dysphoria and feel affirmed in their gender. STPs enable trans folk to use public bathrooms, including the urinal.
STPs range from plastic non-realistic funnels to hyper-realistic and even custom made silicone penises. We stock a basic plastic funnel STP called pStyle, and a couple of different realistic silicone STP options such as New York Toy Collective Sam STP and Packer Gear 5 Inch STP.
If you do choose to use an STP, know that they can take a bit of practice to perfect. We recommend practicing using it in the shower so you can get used to the right positioning and control of your stream.
Like all gender expression gear, using an STP is not something that every trans person chooses to do. It's totally up to you, whether it makes you feel good and helps you affirm your gender.