Thia is new old stock, listed as New 'other' as the packaging is tatty. Never fitted, the washers are still sealed. For a single chainring only 38 to 43T.
Shimano Saint SM-CD50 dh Chain Device ISCG05 38T Incl bash guard
Ethirteen E.13 Bash Ring Chain Ring Rock Guard 104 BCD 44T 200mm Sku2174
Retro FSA / DMR Crank set with DMR Bash Ring Rock Ring Trials Black.
DDG Chain Saw 32 T Bash Ring Protects Chain Ring 5 bolt SILVER or BLK CNC Alloy
MRP World Cup System 2 Alloy Chain Guide Bash Ring T36-40 BCD104
MRP System 3 Alloy Chain Guide Bash Ring T36-40 BCD104 Sku3530