Dental professionals or orthodontic patients needing supplies? This bulk pack of 5000 orthodontic elastic bands is exactly what you need. They're latex rubber bands used in dentistry and orthodontics for various applications. Available in three sizes/weights: 3.5oz (100g), 5.0oz (140g), or 6.5oz (185g). Packaging: 100 pieces per bag, 50 bags per box = 5000 total pieces. Part number D1371600129, made in China, unbranded. Intended for dental laboratory, dentistry, endodontics, and orthodontics use. Brand new in original packaging. Whether you're a dental practice stocking up, a student, or someone going through orthodontic treatment who needs to change bands regularly, having a bulk supply is convenient and economical. Much cheaper than buying small packs. The different oz ratings indicate different forces/tensions for different treatment stages. Always follow your orthodontist's instructions on which size to use. For practices, having these on hand means you're always ready for patient adjustments. A practical bulk purchase for anyone involved in orthodontic care.