Childrensneeds.com Commercial Grade Sand Digger Ride-on Crane Toy (Yellow) While other diggers have problems with bending buckets and arms, Our Digger USES THICKER METAL to last. 5 YEAR FRAME WARRANTY, 2 year moving parts warranty This unique sandbox toy has BALL BEARINGS in the base for smooth 360 degree rotaion Designed in Germany and commonly sold to schools and pre schools now available to you Bushings and Gusset on the arm adds a finished look and strength