Five (5) sizes of Large Rubber Bulbs are available for pipetting:
1.) Catalog #RB-12 12ml (3/8oz.) size 4mm (5/32") opening diameter Bulb: 35mm (1-3/8") OD x 51mm (2") length
2.) Catalog #RB-15 15ml (1/2oz.) size 4mm (5/32") opening diameter Bulb: 38mm (1-1/2") OD x 60mm (2-3/8) length
3.) Catalog #RB-30 30ml (1.0oz.) size 6mm (1/4") opening diameter Bulb: 45mm (1-3/4") OD x 66mm (2-5/8") length
4.) Catalog #RB-60 60ml (2.0oz.) size 6mm (1/4") opening diameter Bulb: 55mm (2-1/8") OD x 82mm (3-1/4") length
5.) Catalog #RB-150 150ml (5.0oz.) size 6mm (1/4") opening diameter Bulb: 73mm (2-7/8") OD x 99mm (3-7/8") length