3/4" x 59" plus buckle and chape. (61" total) Burgundy Chrome Tanned 2mm leather. Dress rather than heavy load bearing, Heavily ornamented.
A bit speculative, but based on the following finds:
Mounts are modelled after numerous extant examples of square mounts with zoomorphic designs, incorporating a central glass stone. eg, https://finds.org.uk/database/artefacts/record/id/948689
Buckle is a copy of a simple medieval Museum of London piece, Dress accessories 480:SWA81:3612 it has an iron hinge pintle cast in place.
The Chape is modelled after numerous extant examples of tongue shaped Zoomorphicly decorated strap ends from the period. see https://finds.org.uk/database/search/results/objecttype/STRAP+END/broadperiod/EARLY+MEDIEVAL
35 mounts at a 1 3/4" centre to centre spacing (about 7/8" of belt between each)