The Big Ding Surfboard Repair Kit polyester repair kit pro is equipped with everything you need to repair your wave-, wind-, kite or SUP surfboard professionally! It is the right choice when you have a ding to repair. It contains 200ml of high performance surf industry polyester resin (Silmar 249a) with MEKP hardener, hexcel fiber glass cloth (4oz), microballons and all tools you need.