Feature●VIKING AND VAHLAHHA COMPATIBILITY. Cue weight bolt kit works for all Viking pool cues made after 2000 and Valhalla pool cues made after 2017●NATURAL BALANCE POINT. Pool cue weights install in the wrap of the cue instead of the rear, for a more natural and comfortable pool stick balance●STACKABLE WEIGHT KIT. Our system of weights for billiard cue sticks allows you to fine tune your cue weight, by adding up to 5 ounces to natural, unweighted Viking or Valhalla cues●EASY TO USE. Pool cue weight kit only requires a 1/4" x 9" hex key and silicon adhesive to install into Viking cue sticks or Valhalla cue sticks. Hex key and adhesive not included●BETTER BREAKS. Pool stick weight gives you a heavier, more balanced cue for better opening breaks and ultimately more winsDescription