Insert Diameter: 10mm
Stop Projection: 19mm
Strike Plate: 26mm x 19mm x 2mm Designed to restrict movement of your sash window. Can be fitted to the frame/ box and prevents the sash being opened beyond that point. Ideal for use on upper floors where children can be left unattended, offering peace of mind and that extra bit of security. Sold as a set of four (enough for 2 windows). Supplied with matching SS wood screws.