Betta Airline Connector and Air Stone Kit contains 1 x 1" Air stone, 1 x Straight connector, 1 x Airline clamp, 1 x Elbow and 2 x Tee pieces. This kit is suitable for use with our 6mm silicone and plastic Betta Airline (not included) to help you create a set-up of your choice. Supplied as 12 cards per outer, to be sold separately.