SRAM, Red E1 1x DM, Chainring, Teeth: 38, Speed: 12, BCD: Direct Mount SRAM 8 Bolt

Look, Mounting hardware for SRAM E Tap chainrings

SRAM, Bosch DU38 XX T-Type, Chainring, Teeth: 34, Speed: 12, BCD: Direct Mount Bosch DU38, Steel, Black

SRAM, XX Eagle T-Type DM E-MTB Bosch, Chainring, Teeth: 34, Speed: 12, BCD: Direct Mount, Aluminum/Steel, Black