This 72-piece set of 4" round / square bamboo coasters is crafted from durable, 0.35"-thick natural bamboo—ideal for custom engraving, laser cutting, or promotional branding. Each blank disc features a smooth, unfinished surface that’s perfect for personalization and reselling. Widely used for corporate gifts, event swag, or handmade home goods. Compatible with all standard drinkware—coffee mugs, wine glasses, tumblers, and more. Helps protect furniture from water rings and beverage stains while offering a stylish natural look. These coasters can double as Christmas ornaments, wall décor, or creative DIY craft bases. Great for makers, gift shops, and custom engraving businesses. Bulk-packed to maximize savings and shipping efficiency. High-margin, multi-purpose wholesale essential.