BETTER POSITION IS WITHIN YOUR REACH. The new QR Extension2 3in. from Predator pairs with any Predator Cue equipped with the Uni-Loc Weight Cartridge System. Once installed the quick releasing extension adds an additional 3 inches of butt length with a single turn of the extension handle. Simply remove your existing rubber bumper, install the Uni-Loc QR Extension2 bumper using a standard 6mm allen wrench, twist on the QR Extension2 handle and you're ready to go. Works with 8K SERIES BK III SERIES BK RUSH SERIES BLAK 2 3 SERIES CRM SERIES IKON2 3 SERIES P3 SERIES ROADLINE SNEAKY PETE SERIES (2012 NEWER) SPORT II SERIES THRONE SERIES LIMITED SPECIAL ED. (2012 NEWER) MOLINARI BY PREDATOR CAROM CUES. Specifications: QR Bumper weight: 0.4 oz (11 gr) QR Extension Handle Weight: 2.1 oz (60 gr) QR Extension Handle Length: 3 (7.62 cm) Finish: Black High-Gloss