SET Nitro Prop Top Lid Lift Support Ram Arm REP Knaack Storage Master Box Mod 91

For Knaack Storagemaster Chest – OEM part # KN 977-2PK. Example Box Models, 89, 90, 91. PLACE the scale at the point the strut connects to the door / lid (at the bracket). And they fit boats, campers, car and truck hood lifts, Rear glass lifts, toppers, toolbox, JO box, JOB box.