We have a large inventory of wire guide grommets for institutional desks and tables. Grommets are stocked in many colors and common sizes. Our Grommets are composed of a two piece design with wire cut out in lid.  The lids are removable to be positioned where needed or each piece can be used separately. 

Round available in 1 7/8", 2 3/8", and 3 1/4"
Oval availible in 2 5/8" x 6"
Paper Slot available in 1 3/4" x 17 1/4"