Avid is a sunsidiary of SRAM and was started in 1991 with the concept 'Small Details. Big Difference'. Avid works hard to bring the most dramatic improvements and make products so good you find it hard to ride without it. The Avid Pro Bleeding Kit provides improved sealing and durability. The Pro bleed kit comes with new rotating metal hose fittings, high volume hose with clamp. This Bleed kit from Avid is a must have for all bicycle technicians.