Non Genuine Replacement Grass Strimmer Trimmer Plastic Blades Suitable For Qualcast and Bosch grass trimmers with 'figure 8' type mounting ART23 Accutrim, ALM 28/30, Hoversafe 25/30, Easi-Lite 28/30 Approximate Dimensions 73mm x 20mm Pack of 1 Blade only Compatible with the following models: Bosch ALM 28, ALM 30, ART23 Easytrim Accu, ART23Accutrim, ART23LI Qualcast Easi-Lite 28, Hoversafe 25, Hoversafe 30, MownTrim, Rota Safe 30