Style #K7105G-3302G...$229.99
27" designer base with buff aluminum on top of each tapered leg. Complete with special carpet castors, #107A gas cylinder and mechanism having a mounting of
5 3/4"W x 8 5/8"L.
Style #K7403G-3318G...$145.79
Includes-textured composite arched leg 27" base, carpet castors, gas cylinder #107A, swivel tilt mechanism mount holes
6"W x 10 1/4".
Style #K7209G-3318G (27"base)...$133.34
Style #K7207G-3318G (25"base)...$128.79
A quality composite 25" or 27" base complete with 2" carpet castors, #107A gas cylinder and mechanism with 6"W x 10 1/4"L mounting holes.
Style #K7301G-3326G...$282.14
Includes-All Metal base 27" low gloss black powder coat finish, 2" carpet castors, gas cylinder 107A, swivel tilt mechanism mount holes 5 5/8"W x 17 1/2"L
K7401G-3513GHD...$379.65
Everything Heavy duty for big people. Read more!
Style #K7305GC-3311G...229.39
Mechanism mounting is 5 1/2"W x 6 1/4"L. Base is hand polished 28" aluminum with scuff pads, carpet castors and #107A gas cylinder
All assemblies shown include mounting screws or bolts
Mount to the bottom of your chair and you're good to go!
Style #K7103G-3324G...$158.99
Includes a Black textured powder coat metal 23" base, carpet castors, gas cylinder #107A, swivel tilt mechanism mount holes 3 3/4"W x 7 1/4"L

You can Upgrade your castor while on 
Roll easier on carpet with larger (2 3/8") castor-Adds $9.50
Mat and Wood floor use (2 3/8")-Adds $14.25
Mounting board
Style #K7407G-3113G...$208.54
Brushed satin finish 28" metal chair base fit's up to large executive swivel chairs. Featuring an Knee Pivot mechanism for ultimate comfort. Unique Knee pivot mechanisms when mounted properly at the front seat edge permit the user to tilt back without feet lifting off floor. Includes carpet casters and gas cylinder #107 for all normal height seating.
Style #K7409G-3302G...$218.74
A classic full size 28" which meets and exceeds rigerous BIFMA/ANSI industry testing. Complete with all that you see including casters, with nothing else to purchase. We throw-in a choice of either mounting bolts or screws too. Impressive styling is superb whether behind a desk or in a conference room.
Style #K7501-3311G...$193.99
Mechanism mounts at 5 1/2" wide x 6 1/4" front to back. All metal Black base. Shipped with 2" hooded carpet casters and #107A gas cylinder.
Style #K7503G-3311G...$170.69
Buffed bright finish has protector toe scuff caps permanently attached to prevent shoe scratching. 26" diameter for up to large chairs, Includes 2" carpet casters, 107ACOM gas lift and a 6 3/4" x 7 3/4" sturdy gas mechanism
Style #K7309G-3113G...$172.04

24 1/2" diameter base fits small to medium office chairs. The Knee Pivot mechanism provides an extremely comforting tilting action with little effort to remain in a tilted position when installed properly. Also, feet virtually remain flat on the floor. Mechanism mounting holes are 6" wide and 7 7/8" long.

K7401GHD-3525GHD...$406.30
Everything Heavy duty for big people. Read more!
Style #7507-25"-3322G...$190.44
Style #7509-27"-3322G...$192.24
Hand polished aluminum. Ships with carpet casters (optional wood floor and plastic mat casters), gas cylinder and mechanism.
Style #K7106-3322G...$180.49
Affordable 26" eggshell gloss black powder coated base with carpet casters (Optional wood floor and plastic mat) Leg narrows to caster tip creating a striking distinctive design. Mechanism and gas cylinder included.
Style #K7507-3311G...$182.99
All new from seat to floor.Nothing else to purchase. 25" buffed base, 2" carpet casters, gas cylinder and mechanism with mount holes at 5 1/2" W x 6 1/4"L. Mounting board optional.
Style #K7105G-3311G... $204.84
Apractical designer base that narrows to the base center. Buff top and black sides. Plate footprint is 6 3/4"W x 7 3/4"L.