Assembly Instructions Product Description Perfect the balance and ergo of your BRS E-Volve Hex butterfly knife trainer with these custom-made Zippy spacers. The spacers are made in-house from a shatter-proof polyurethane. The spacers extend the handles, feature positive jimping, and enable adjustable balance with up to 3x removable tungsten weights per spacer. Features Extends handles of the BRS Hex balisong from 5.58" to 5.75". Shatter-proof extensions protect handles from hard drops. Adjustable balance: Zippy spacers each hold up to 3x removable tungsten weights, allowing for reduced handle bias, neutral, or more handle bias and momentum per your preference. Positive "sawtooth" jimping for extra grip on ladders and chokers. Optional handle inlays modify the grip and deepen sound. These pop in with your thumb and can be removed with a needle or pin. The spacers each weigh 0.044 oz empty, and up to 0.110 oz with all 3 weights installed. For comparison, the stock spacers each weigh 0.186 oz. The handle inlays weigh 0.046 oz total. With Zippy spacers and handle inlays installed, the BRX Hex balisong trainer weighs 3.414 oz (empty), and up to 3.542 oz with all weights installed. For comparison, the stock Hex trainer weighs 3.461 oz.
