Warm Reminder: Ensure the spindle hole on your pressure gate fits an M10 (10mm) bolt size. This item is only for M10 spindle holes, NOT for 8mm screws. Package of 4. Size: 10mm x 80mm / 0.4 inch x 3.15 inch. Made of metal and reusable. Easy to install, no tools needed, and no wall drilling required. Adjustable Length Bolts: Pressure-mounted screw bolts for baby gates, suitable for top and bottom placements, fitting most locations like walls, stairs, and wood. Rubber Ends: Protect your stairs from scratches and allow for gate installation on stairs against a baluster or round post. Fits Most Pressure Gates (10mm): Including baby gates, pet gates, walk-through extra wide, tall safety baby proof gates with doors. 4pcs Pressure Screw Threaded Spindle Rods Walk Through Gate Accessories - M10 x 10MM Product Name: 4pcs Pressure Mounted Baby Gate Threaded Product Material: Metal/ABS Product Color: Orange Product Size: M10 thread; 80mm x 35mm Product Weight: 292g Package Contents: 4 X Screw Mounted Bolts Only the above package content is included; other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.