Angled, computer-designed solid polypropylene handles with hang hole are shaped to fit human hands, to provide extra leverage, and to keep knuckles safely away from work surface. Blade/surface angle for paint scraping efficiency. High-carbon steel blade with 2 scraping edges. Use No.11000 Hyde 2-edge 1" replacement blades for No.10500; No.11050 Hyde 1-1/2" for No.10510; and No.11100 Hyde 2-1/2" for No.10520.