EZ-Leveler-II is a precision horizon leveling adapter and this item comes in a bundle with an Arca-Swiss Style compatible clamp 55mm.
Key Features of EZ Leveler
Smooth rotation of knobs
Head Alignment Knob to point the initial shot from tripod head towards any direction
QRC55 (F8303) Features:
55mm length of clamp
locking pin
3/8 female center thread
Note: EZ leveler and QRC55 not assembled during purchase. Works perfectly with Matterport Cameras. Not recommended for use with heavier loading with Nodal Ninja nadir adapters due to the added torque.