This is an extention tube that goes over a ratchet wrench handle to extend the lenth witch gives it more leverage. The tube has a hand grip on it. It is very strong and very light. They come in three sizes to fit most brands of ratchets handles . The first one fits a 1/4 inch ratchet and is 8 inchs long. The second tool fits a 3/8 ratchet and is 12 inchs long. The third tool fits a 1/2 inch rachet and is 18 inchs long .