Package Included 5 x Shank 7 x Teeth 5 x Set of Mounting Hardware Specifications Material: Carbon Steel Shank Size: 16'' x 8'' Tooth Size: 4'' x 2'' Hole Interval: 1-1/2'' Hole Diameter: 1/2'' HIGH QUALITY MATERIAL The box blade is made of high quality carbon steel with a powder coated surface, strong enough to withstand harsh environments and durable enough to last. 3 ADJUSTMENT HOLES The cassette blades have 4 adjustable holes for easy adjustment. They are held in place by pins for easy adjustment and removal. EASY DIGGING The box blade's weight also helps to reinforce the scarifier shanks when digging in hard soils and increase traction and stability to tractors with front-end loaders. 1 PCS 18'' Ripper Shank 5 PCS 16'' Ripper Shank 6 PCS 16'' Ripper Shank Add to Cart Add to Cart Add to Cart Customer Reviews 4.0 out of 5 stars 15 4.0 out of 5 stars 15 4.0 out of 5 stars 15 Price $29.99$29.99 $89.99$89.99 $109.99$109.99 Size 18'' 16'' 16'' Quantity 1 5 6 Holes 4 Holes 3 Holes 3 Holes