DURA-LIFT 170 lb Heavy-Duty Doubled-Looped Garage Door Extension Spring (2-Pack)-DLEO170 Motor System ensuring the secure storage of

ensuring the secure storage of up to 600 lbs of evenly distributed items per platform

Premium A229 Oil-Tempered Steel: crafted from heat-treated A229 steel for superior resistance to fatigue and stress

Space-Saving Design: Keep your garage floor clear and maximize unused ceiling space

Safety lock engages instantly on power loss or overload

and nylon wheel to quiet your door

DURA-LIFT 170 lb Heavy-Duty Doubled-Looped Garage Door Extension Spring (2-Pack)-DLEO170 Motor System ensuring the secure storage ofDURA LIFT 170 Pound Heavy Duty Extension Garage Door Spring 2 Packs are extension spring replacements for broken sectional garage door extension springs for 7' tall doors. All DURA LIFT garage door extension springs are manufactured from oil tempered spring wire meeting ASTM A229 and are designed for a minimum of 10,000 door open and close cycles. Double looped ends are standard to add double the resistance strength. 170 POUND WEIGHT CAPACITY springs