Berkshire Earthwings is a tree staking system available in three sizes 3C for trees up to 3 caliper 5C for trees up to 5 caliper and 10C for trees up to 7 caliper. They are particularly useful for trees planted in sandy soil or in windy locations. Earthwings can also be used to secure fences sheds tents and equipment and picnic tables. They are also available as a rootball anchor for installations where safety and aesthetics are particularly important. Earthwing tree anchors are made of steel with a pre-attached galvanized cable. They give a professional looking securely anchored tree at an economical price and are easier to use than other types of tree anchors. Earthwings patented design makes them easy to install in three steps drive anchor pull to lock in place attach to tree. Berkshire Products has manufactured hardware for over 25 years. For more information contact Berkshire Earthwings at (413) 229-7919 or visit www.BerkshireEarthwings.com.