This Vitrex 10 2906 is a Professional 20mm Adhesive Round Notch Trowel, it has a rust resistant stainless-steel blade and a large, contoured handle with a soft grip to ensure comfort over prolonged use. The solid aluminium shank has 9 rivets and is designed to be used by the professional installer. Specifications Blade Size 115 x 280mm. Round Notches 20mm.