•Pitch 1.7mm •Blade length：240mm •Blade thickness：0.5mm •51583 Spare Blade for Seiun Saku 240mm The entire handle is coated with elastomer resin, and it gives you good grip. The handle is light and comfortable to grip, and it gives you good performance even when you have gloves on and or when your hand gets sweaty from work. TPE stands for “Thermoplastic Elastomer”. Elastomer is a type of soft resin like rubber, so it becomes soft when heated and hard when cooled.