Product: Stable characteristic, high reliability. Unique charm, wear-resisting durable and undamage. Easy to install. No drilling and cutting required. It is a good choice to replace an old one. size: Made of chromed forged stee Internal three leg puller with opening: 15~30mm Internal three leg puller with opening: 30~80mm External three leg puller with opening: 15~80mm Sliding hammer weight: 1.9lb(850g) Hammer shaft length: 17.25in(440mm) End of the shaft thread: 5/8inch-18 UNF Application: .