Knub Extension $17.99 OUR LATEST FINGER EXTENSION FOR YOUR ADJUSTABLE HANDLE RELEASE. Patented Star Drive system allows you to adjust the handle to multiple locations Close the knub up for a two-finger handle Lay the knub open for a three-finger handle Knub Extension quantity Add to cart SKU: KNUB EXTENSION Categories: ACCESSORIES, Releases Related products SHOP NOW Buckle Strap Flex $26.99 SHOP NOW Exit 4.6923076923077 out of 5 $139.99 SHOP NOW Omega 4.7142857142857 out of 5 $279.99