Gibraltar SC-BDDC Deluxe Bass Drum Cowbell Mount Stands & Holders The Gibraltar SC-BDDC Deluxe Cowbell Mount allows you to easily add a cowbell to your kit. Mounts on bass drum counter hoop . 9.5mm (5/16') post with 'U' clamp and wing screw. Super protective grip minimzes hoop damage Package Included 80 sheets /160 pages Standard 6 holes Punched Only fit A5 6-ring binder. Only A5 refill paper included, no binder. Hole Distance: The distance between the 3rd hole and the 4th hole is 7 cm/2.75inch; for the rest, the distance between every two adjacent holes is 1.9cm /0.74inch. Only fit A5 6-ring binder. Paper Size: A5 size, 8.3x5.6Inch /(21 x 14.2 cm). Standard 6 holes Pouched. A5 Filler Paper, 3 Hole Loose-leaf Binder Refills, | Ubuy Paper Rings A5 Grid Refill Paper, A5 Graph Rule Paper/Quad Rule Filler A5 Paper Package Included: 80 sheets /160 pages. (MUST BE A5 6-ring, other types like 3-ring and 7-ring binders are NOT COMPATIBLE) Package: Only A5 refill paper included, no binder.A5 Size A5 size, 8.3x5.6Inch /(21 x 14.2 cm). Standard 6 holes Punched. Package: Only A5 refill paper included, no binder. A5 Colorful 6-Hole Punched Ruled Refills Inserts for Personal Size Organizer Binder, 5-Color Loose Leaf Planner Filler Paper, 50 Sheets/100 Pages,Ruled... (Please refer to the picture for details.) Paper Thickness: Filler paper with 100gsm smooth beige paper for easy writing. (MUST BE A5 6-ring, other types like 3-ring and 7-ring binders are NOT COMPATIBLE)