NOTICE - This item only fit for M10 Spindle Hole, NOT FOR 8mm screws, please check spindle hole of your pressure baby gate first Dimension - Thread M10, 33mm in diameter, screw bolt is 8.5cm in length, durable and strong with metal material. With a clear rubber top this helps to hold in place but also protecting wood/paint work Easy install-NO need tools and NO damage on wall just rotate the nut and create reverse force against wall, quick and easy to fit Perfect fit with Lindam Gate and most of pressure gates (M10), fit for most places, such wall, stairs smooth surface etc Package Content 4 pcs threaded spindle rods replacement; bring your old gate back into use, save you from buying a new gate