The DWSMMG-4. The DWSMMG-4 Mega Clamp is Designed with One Standard V Clamp and One Angle Adjustable V Clamp. Each Clamp is Quick Release and Accommodates a 1/2" Tom Arm to 1.25" Tubing. One Memory Lock is Included. ***This item may ship direct from the manufacturer. Please contact us for estimated delivery if needed.***