Parisian Pet Nylon Collar

Target

Color is an excellent match (bright green), Material appears to be nylon webbing, Basic buckle collar design with D-ring, Overall form factor and simplicity match

Lupine Nylon Adjustable Dog Collar

Chewy.com

Color (dark green) is an excellent match, Material (nylon) matches, General design (standard collar with D-ring) is highly consistent, Buckle type (quick-release plastic) is plausible for the obscured buckle in the source

Nylon Dog Collar

Hot Dog Collars

Color is a very close match (neon green), Material appears to be nylon webbing, Basic buckle collar design with D-ring