Ergonomic Knee Chair, Fabric, Black Color:black Putting a drop of vegetable

Putting a drop of vegetable oil on the O-rings after washing will make them last a long time

Rugged UV resistant plastic top lasts for years

Use indoors or outdoors

Actual Platform: 13

lightweight design and offers a 4-foot cord with a handy lapel clip so you'll enjoy nearly unfettered movement while wearing it

Ergonomic Knee Chair, Fabric, Black Color:black Putting a drop of vegetableErgonomic Knee Chair, Fabric, Black Item# 15Z368 Mfr. Model# KCW778 UNSPSC# 56101504 ItemKnee Desk Chair SeriesWork Smart Overall Height25" Overall Width17" Overall Depth31" Seat Height Min. 22" Seat Height Max. 25" Seat Width17" Seat Depth12 1 4" Back Height10 1 2" Back Width18 1 4" Seat ColorBlack Back ColorBlack Seat MaterialFabric Back MaterialFabric Frame MaterialWood Assembled UnassembledUnassembled Cushion Thickness2 1 2" Arm StyleNo Arms