Kickdown Door Stop - Heavy Duty Door Stopper With Kick Down Step - Foot Operated Simple operation and high reliability Stick the drilling template with a little tape inside the door. The eye measurement should be sufficient to stick the stencil approximately vertically. The distance from the stencil to the floor should be at least 55-85 mm maximum. Make sure that the side distance on the door leaf is large enough that the door can be closed easily after assembly. With the 4 mm drill bit, pre-drill the three marked holes (through the stencil in the door). Remove the stencil and gently screw the door lock device with the cordless screwdriver, starting with the screw on top. Product Features ? IMPROVED MODEL 2023 ? We celebrate our new model with reinforced return spring for enhanced reliability in long term use. MAXIMUM HOLD ON THE FLOOR: The extra strong steel spring presses the rubber foot firmly to the floor. This provides maximum hold even with self-closing doors (up to 36 lbs pull force). FLEXIBLE POSITION: The spring loaded plunger with 2.4 inch allows you to fix and release even heavy industrial doors at any position. HEAVY DUTY: The sturdy aluminum housing is chrome-plated on the outside, galvanized steel on the inside and a durable spring ensure extra long-lasting function - both indoor and outdoor. DIMENSIONS EASY ASSEMBLY: Easy installation guaranteed, thanks to drilling template, three included screws and compact dimensions of 8.9 x 1.4 x 1.4 inch. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!