For excellent and consistent flight, equip your archery setup with Magnus Stinger 4-Blade Fixed Broadheads! The patented Stinger is made from knife-grade stainless steel and is razor-sharp out of the package. The patented diamond tip provides bone splitting penetration on the world’s largest animals. The ferrule is made from aircraft quality aluminum and is spin-tested within .002 thousands of an inch for accuracy and reliability. Stinger Broadheads come in a pack with three fixed broadheads. Manufacturer Lifetime Replacement Guarantee. Dimensions: 2-1/8″ x 1-1/16″.