Item description from the seller
Item Type: Car Jacks Pads/ Jack Stand Adapters
Brand: AUTOXBERT
Pad diameter: 78mm/3in
Height: 38mm/1.5in. (Please check the size before purchasing.)
Material : Rubber
Color: Black
Package Included: 1pc/2pcs Rubber Pad

Fitment:
for A - Class(W168, W169, W176)
for B - Class(W246)
for C - Class(W203, W204, CL203, C204, S203, S204)
for CLA COUPE (C117, X117)
for CLC Class(CL203)
for CLK (C209, A209)
for CLS (C218, C219)
for E - Class(W210, W211, W212, A207, C207, S210, S211, S212)
for GL / GLA (X156, X166), G - CLASS, GLE, GLC
for M - Class(W164, 166)
for R - Class(W251, V251)
for S - Class(W220, C215, C216), SL
for SLK (R171), SLS, SLR

Note: Please check the size before you buy it!
This auction is just for the adapters and not the entire jack stands.The post thickness should be less than 27mm.
You can also use it on floor Jack!