My supbord uses a fin with a US box attachment. There is a convenient screw on the fin for mounting with a wing. However, it is difficult to unscrew it after riding, because the screw slips in your hand. To avoid this, I made a small flat screwdriver, with which you can easily unscrew this screw. In order not to lose the screwdriver during use and between rides, a hole with a diameter of d = 5mm is made in it, into which any carabiner must be inserted. HanD

The other day, my wife came up to me and asked me to find a suitable napkin holder. One of the main requirements is the ability to stack napkins in a whole stack at once, without folding or folding. I took the pack, inserted it vertically and started using it. I looked for possible options. but none of them satisfied me, because one of the requirements was not fulfilled. Well, if that's the case, I'll make my own version. I present it to you))