ZERO Mounting Bracket BlockMaxR1 to all tripods except Descend Mate. For Descend Mate, use product MB173DM. Features of the ZERO Mounting Bracket BlockMaxR1: Fits The Blockmaxr1 To All Other Tripods 2.55kg Steel Lifespan up to 10 Years Certification: EN 362:2004 At ZERO Height Safety (NZ/AU) Limited, committed to minimizing our environmental impact and promoting sustainable practices throughout our operations. At ZERO, giving back to our community is important to us. Volunteering allows our team to have a sense of fulfillment and contribution. We love supporting organisations that are doing great work and whose company values align with our own. 100% New Zealand owned & operated