Regarding to your question, There are 5 bench types of KOTOBUKI retractable seating. For the recommended type for sport hall are SS-07 and SS-08 which make from High density polyethylene (the rests are made from plywood)
- SS-07 is blow mold HDPE (high density polyethylene), no backrest
- SS-08 is blow mold HDPE (high density polyethylene) with backrest
Color of seat can be choose from standard range
Seat Frame material : Steel plate with Epoxy powder coating finish.
Kindly find attached the picture of SS-07 and SS-08 type.