Wolverine Slingshot 304 Stainless Steel Catapult Hunting Sling Shot with Rubber Band Material:304 stainless steel It is light and easy to carry around and put into pockets. ubber bands can be fixed by 4.5mm steel balls. Ergonomic handle with red winding ropes offer good hand feel and tight holding. Package included: 1 pcs slingshot + 1pcs rubber band