SKLZ Unisex's SpeedSac Variable Weight Resistance Training Sled JB10_discount Improve your flexibility with RockBand

Improve your flexibility with RockBand Flex’s uniquely positioned loops that allow you to progressively increase your range of motion

Depth 750mm

They're simple to put on and secure with quick tie strings

Complete sun protection in any direction

Powder coated aluminum frameStack up to 4 high or stand on its end

SKLZ Unisex's SpeedSac Variable Weight Resistance Training Sled JB10_discount Improve your flexibility with RockBandImprove 40 yard dash times, overall speed and explosiveness Strengthen lower body muscle groups Adjust weight options for variable weight resistance Includes 3 durable weight bags that can each be filled with up to 10 lbs of sand (30 lbs total) Adjustable leash length to accommodate athletes of any size