Pens go through a 1/2 -diameter hole on top to rest in a 1/4 -diameter hole in this compact one-piece display. All measurements in inches Product Number Height Width Depth Price PNH24 4 1/2 6 1/2 3 3/4 $12.00 PNH36 4 1/2 9 1/2 3 3/4 $16.00 PNH48 4 1/2 12 1/2 3 3/4 $20.00