- Core screw-D-kit = 2 x aluminium-D-rings
- Core screw-D-single = 1 x aluminium-D-ring
- Outside dimensions of the ring: 66 x 81 mm
- Dimensions of the inner ring opening: 42 x 43 mm
- opening width for the bolt: 29mm (fits 28mm tapes)
- Asymmetric : no
Side eyelets for the Core and Core CL for connection to the textile, side eyelets (EN 358).