A pack of ten latex balloons, each with dimensions of 3 by 7 mm (D x L)  and a 0.03 mL unloaded volume. They are suitable for very large mice and small rats with 100-200 grams body weight.

A pack of ten latex balloons, each with dimensions of 4 by 8 mm (D x L) and a 0.06 mL unloaded volume. They are suitable for rats or small guinea pigs with 300-400 grams body weight.

A pack of ten latex balloons, each with dimensions of 5 by 9 mm (D x L) and a 0.1 mL unloaded volume. They are suitable for guinea pigs with 500 grams body weight.

A pack of ten latex balloons, each with dimensions of 6 by 10 mm (D x L) and a 0.2 mL unloaded volume. They are suitable for small rabbits with 700 grams body weight.

A pack of ten latex balloons, each with dimensions of 6.8 by 11 mm (D x L) and a 0.27 mL unloaded volume. They are suitable for rabbits with > 700 grams body weight.

A pack of ten latex balloons, each with dimensions of 8 by 12 mm (D x L) and a 0.35 mL unloaded volume. They are suitable for large rabbits with 800-900 grams body weight.

A pack of ten latex balloons, each with dimensions of 8.5 by 13 mm (D x L) and a 0.49 mL unloaded volume. They are suitable for animals > 900 grams body weight.