Vitrex Professional Stainless Steel Adhesive Trowel.

Size: 280 x 115mm (11 x 4.1/2in).
Round Notches: 20mm.

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.