With a new adjustable belt and patented Slide-Lock Technology, Hopz increases explosive leg power and strengthens muscles for a higher vertical jump. This version of the vertical jump trainer comes with two levels of resistance bands of heavy and light. The item "Sklz Hopz Verticle Jump Trainer Heavy/Light Bands Brand New" is in sale since Friday, October 30, 2015.This item is in the category "Sporting Goods\Team Sports\Basketball\Training Aids". The seller is "fujor2585" and is located in Warren, Michigan. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, ZA, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, PH, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, TR, BR, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.