[8mm UNIVERSAL SIZE]This 4 pieces of spindle rods is designed to fit pressure mounted gates with an 8mm hole where the bolts go in. Please make sure you have the correct hole size for your gate.   [INTEGRATED STRUCTURE,MORE DURABLE & FIRMER]The screw and supporting surface adopt an integrated metal structure, which will not break or shake. The silicone contact surface increases friction and stability, making the door rail more reliable.   [EXTRA LONG & EXTEND THE WIDTH]Each spindle rod measures 8cm long, longer than many alternatives, potentially helping you span a wider opening or achieve a sturdier fit.   [PERFECT REPLACEMENT]Baby gate spindle rods are as effective as factory bolts. If you lose or damage the , then replace it.   [ELEGANT COLORS]Plastic material with plastic adjustable wheel Black, extra long 8cm spindle rods      Colour:silver+gray   Material:plastic      Package Contents:   4 x Threaded Spindle Rod