I needed a drain cover for our tub. I am always afraid i will lose my ring or anything else down the tube. This is a modified version of the Shower/Tub Drain Screen by 3P3D. I scaled it to my drain size using Tinkercad When i ran the water in the tub the force spun the original design on it's side. so i added 4 side walls to the design. The cover fits drains 47mm.Print at more than 50% infill in ABS and it should last a while.