Flat lid with ring inserts: 6 openings/Ø 91 mm suitable for H 16 and H 22 Features: The flat lid is very easy to position on the bath frame. No tools necessary! Lid is made of stainless steel Multi-piece ring set made of heat-resistant plastic Individual sets of rings are removable Flat lid with ring inserts: 6 openings/Ø 91 mm suitable for H 16 and H 22 Features: The flat lid is very easy to position on the bath frame. No tools necessary! Lid is made of stainless steel Multi-piece ring set made of heat-resistant plastic Individual sets of rings are removable