MOON GLD HEAD REPLC 2 PACK POUCH 2CT. Benefits: Pairs with Moon Electric Toothbrush. One with black bristles and one with white bristles. Bristles last 4x longer than natural toothbrush bristles. 2-Pack interchangeable brush head refill. Tapered, ultra-fine bristles that reach deeper for a better clean and whiter teeth. Formulated Without: Artificial Flavors. SLS/SLES. Animal Products. Includes: 2 Interchangeable brush heads (white and black) featuring cutting-edge, ultra-strong bristles with a superfine feel..