Major brand tennis racket manufacturers provide sizing guidelines to help you select the correct racket. If you child is 5 years old or younger and is 44 inches or shorter, a 19- or 21-inch racket is a good fit. If your child is age 6 to 8 and measures 45 to 49 inches, select a 23-inch racket.
Before selecting the ring enhancer, you should consider what type of enhancer you would like - Ring Guard, Ring Wrap, Curved Ring or other type of ring enhancer. When selecting a ring enhancer, it is necessary to know both the size and shape of the solitaire diamond worn in conjunction with the enhancer. The shape of the enhancer must conform to the original ring and allow the center stone to fit properly into the wrap or insert.
A ring is a round band, usually in metal, worn as ornamental jewellery around the finger, or sometimes the toe; it is the most common current meaning of the word  ring .ing made of 2 or 3 hoops that are hinged at the back and meant to interlock and open; popular for betrothals in 16th-and 17th-century Europe. Guard ring (a.k.a. ring-guard). is a slender, slightly tighter-fitting ring designed to be placed on the finger after a large/loose ring, to prevent slippage and ring loss.