Letter beads come in several common shapes and sizes: round beads (about 4 × 7 mm), square letter beads (about 6 × 6 × 6 mm), and pony-style beads (about 8.5 × 7 mm).
Hole diameters vary by bead type; examples list roughly 3.7 mm for pony-style beads and about 3.2 mm for some letter beads.
Packaging varies by kit: many come in clear bead organizer boxes or compartmentalized trays for sorting, while some wooden sets are stored in durable wooden trays designed for easy sorting and reuse.
Letter beads are popular for friendship bracelets, name necklaces, keychains, phone accessories, bead earrings, and other jewelry or craft projects where you want to spell names or messages.
Kit contents vary: some include multiple laces or strings (for example, a wooden set listing 12 laces with clasps), while others supply a measured length of elastic cord (one example lists 9 meters / 9.8 yards of clear elastic) plus an instruction sheet.