Tennis Trainer, Make One Better than the Rest for $10 or Less - Tutorial

Make the best tennis trainer, rebounder around for $10 or less. It’s easy by following this step by step video. Here’s my updated design, just posted July 10, 2021: The list of items I used for this build. 1/8 inch bungee/shock cord can be found here: Tennis Balls: 1/8 inch Shock/Bungie Cords: 1/8 inch Elastic Cord: 2 mm black Elastic Cord: 0.8 mm clear stretch cord: 50 lb test Fishing Line: #1 Barrel Swivels: Heavy Duty Needles: 8 inch Cable Ties: Bicycle Inner Tube: fishing barrel swivel (bigger the better): 2.5 lb Weight: 5 lb Weight: Gell Super Glue: https