Descriptions:

100% bland new and high quality
With steel ball bearings， smooth and accurate slide， quietly.
Replacement drawer runner sets to fit most makes of cabinets.
Applicable for filing cabinets， desk pedestals and general storage drawers.

Color: Black
Width: 33mm
Material: Cold-rolled Steel with Steel Ball Bearings

Length: 235mm/10''      285mm/12''      300mm/14''
Tensile length:460mm/18.11''      570mm/22.44'' 660mm/25.98''

Various Lengths available in each Groove Size， Please kindly choose your required size !

Instructions:

Measure the height of the groove in the drawer to establish if you want the 33mm width or not
And for replacing runners， measure the length of an existing runner in its closed position
If you have measured 33mm for the groove height and 235mm for the runner length， then what you want is 33mm x 235mm Drawer Runners
This does not have to be an exact match just as long as the runner is shorter than the depth of your cabinet.

the longer the runner， the better the opening of the drawer

Package included:
1 x one pair of 33mm drawer runners