These are 6.5mm Plastic Alphabet Beads.  The letter or design appears on four sides of the bead and the hole size is a roomy 4mm.

We carry a large selection of Wood Model Craft Kits, such as Wood Model Cars, Wood Model Boats, Wood Model Planes and Wood Model Trains.  We also carry a complete line of Craft Supplies, Birdhouse Kits, Foam Crafts, and much more.