Solve the problem that urine goes straight out. You can choose to lock it up on the toilet seat by using the screwdriver provided or not. This Splash Guard only goes with GrowthPic Potty Training Seat( Dark Blue: B07NMYJWMF, Pink: B074QL9BT9, Blue: B07H9Y15TJ, Mint Green: B07GDLGXP6).