Cactus Retrofit Kit
Retrofit kits are available for Combo Chairs with hourglass spring mounts and eyebolt mounts with carabiner attachments. Assembly requires a drill. Note: if your chair has eyebolt mounts, you must purchase new springs (the old ones will be too short).
Cactus 2.0 Upgrade Kit
Retrofits your current Combo Chair with Cactus (or cacti) to the new Cactus (or cacti) with spring silencers. Only for Combo Chairs that currently have Cactus mounts.