|Global Product Type||Casters & Glides-Office Furniture Casters|
|Caster/Glide/Wheel||Grip Ring Stem Twin Wheel Casters|
|Stem Type||Available in: B or K|
|Weight Capacity (text)||110 lbs. Per Caster|
|Wheel Tread||Available in: Hard or Soft|
|Material(s)||Available in: Nylon or Polyurethane|
|For Use On||Available in: Carpet, Chair Mats or Hard Floors|
|Caster Quantity||5 per set|
|Stem Size (W x H)||Available in: 3/8" x 7/8" or 7/16" x 7/8"|
|Caster/Wheel Size||Available in: 1 1/2" Caster or 2" Wheel|
|Wheel Type||Available in: Locking Hard Twin Wheel or Locking Soft Twin Wheel|
|Pre-Consumer Recycled Content Percent||0%|
|Post-Consumer Recycled Content Percent||0%|
|Total Recycled Content Percent||0%|
|Special Features||Available in: Oversized Neck or Standard Neck|
|Brand||Master Caster® (website)|
Thanks for your question.
The best way to choose the correct caster for your needs is by measuring the stem of one of your existing casters that need replacing.
I have attached a link to a guide which should help with your selection.
If this guide does not help, or we do not stock the correct casters for your chair, we can also special order casters - measurement guide for larger/non-stocked casters can be found here.
If you need further assistance, or need to order a special order caster ( non returnable), please call our friendly customer service center on 866-501-6055,.
Master Caster does not offer single safety casters, but they sell them by the set of 4 or 5. The main reason they do this is so the chair will sit evenly on the floor, and all casters will have the same "wear and tear." Kind of like tires on a car. Hope this makes sense.
Now the good news is that we have these casters in stock for same day shipping and your delivery will be there in 1-2 business days. Plus we do offer a low flat rate shipping of $7.95 and if you order more than $75.00 we will provide FREE shipping!
Thank you for your question about chair casters. I think we can help you.
First, we can narrow down wheel style. All wood floors require soft wheel casters. These won't damage your floor, and and prevent your chair from sliding around too much on the smooth surface.
Figuring out the right stem is a little trickier. The first thing to do is check out the chair base. Is it wood, metal, or wood clad (metal with a wood or simulated wood cover)?
If your chair has a wooden base, you'll need W stems. You can order soft wheel W Stem Casters here.
If your chair has a metal or wood clad base, you'll have to remove one of your current casters and measure the stem. The best way to measure the diameter is to wrap a string around the stem, then measure that length. Most stems have either a 7/16" or 3/8" diameter. After measuring the diameter, measure the length to get the proper stem type.
If your current stem is longer than the options in the diagram, that's ok. You can use a stem shorter than your original. Only the diameters have to match.
Hope this answers your question!
Is sounds like you need K-Stem casters, but you should match the length and diameter of your stem to the diagram below.
To determine the length, you only need to measure the part of the stem exposed above the wheel. It doesn't matter whether your current casters have rounded or flat tops. As long as the length and diameter are the same, the new casters will fit your chair.
You can shop our dual wheel, K-Stem casters for chair mats here.