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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
Centre rail: 86cm (L) x 102 mm (W) with 18 slots
Remove spike and spring for use with HART Rubber Bases (44-089 and 44-087)
Soft nylon filament
10 Safety Pins
HART Pro Speed Sack Swiss Balls & Accessories Centre rail: 86cm (L) xDevelop sprint speed and acceleration with the weighted HART Pro Speed Sack. Adjustable waist belt gives a secure fit and allows for the user to run with their regular technique while providing continual resistance. The Pro Speed Sack is more versatile than a metal sled as runners can adjust to a lighter weight to suit all levels of speed training. Non marking sack can be used on grass or most indoor surfaces. Internal handle can be used to perform
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