This is a replacement cap for Carmex lip balm sticks. It's got plenty of clearance in the lid so you don't have to fully retract it each time,

My father was having trouble handling the small red cap that comes on the Carmex and would frequently lose them. I decided to make something a little bigger so he could get a good grip on it. (I also printed it in bright orange for when he inevitably dropped it.) At about ten cents a piece, I don't feel bad discarding it when the tube is finished,