On the manufacturer's website:
L 300: https://sunerzha.com/production/bath/design/b-poruchen-pryamoy-d-28-mm-l-300/ 
L 500:https://sunerzha.com/production/bath/design/b-poruchen-pryamoy-d-28-mm-l-500/ 
L 800: https://sunerzha.com/production/bath/design/b-poruchen-pryamoy-d-28-mm-l-800/ 

Branded color palette:
https://3dsky.org/3dmodels/show/palitra_firmennykh_tsvetov_sunerzha 

Collaboration with designers:
https://shop.sunerzha.com/designers/