Our small wood block beads are no longer available but our medium wood block beads are perfect as big beads on small parrot toys and small beads on large parrot toys. The holes are big enough to fit over most stringing materials.
We recommend our large block beads for only for the toughest big-beaked chewers out there - the rest of the parrots will take one look and sensibly walk away.
All our block beads are hard wood and coloured (by us) with food safe dye.
Medium = 2.5cm (1") with 6mm (1/4") holes.
Large = 4.5cm (1-3/4") with 10mm (3/8") holes.