You will receive a similar crystal as shown below (not the exact crystal as pictured but it will be a similar color and look). The chain is 17 inch. If you prefer a 20 inch chain, please let me know in the "note to seller" when you place the order. If you are buying for a small child I can replace the small bail with a round triple link bail, for added strength (to prevent being tugged or pulled off the chain) please also let me know in "note to seller" at checkout. Mahalo!