This item is an accident waiting to happen.  When holding plywood as demonstrated the plywood frequently slips out of the gripper and heads directly for your toes.  If you are not wearing steel toed shoes this could cause a bad injury.  I can't help giving this item one star because the ratings don't go low enough to do otherwise.  It is well made and structurally strong but the physics of this method of carrying plywood just makes this device impossible to use safely.