There may be little difference in the size due to manual measurement. The color might exist slightly difference due to different display devices.Various kinds of bristle material for choices.  Remove food residues and dental plaque from your mouth. Package style: blister/paper box with printing/plastic box. Toothbrush for adult size, we can also do children size or customized size. We have different bristle fitness, materials and colors. Gentle on Gums: Perfect for sensitive teeth, the bristles are ideal for promoting gum and oral health. Clean tooth-by-tooth to sweep away more plaque and food debris for a healthy mouth. For whatever reason, if you are not satisfied with our toothbrush, just contact us through Amazon or return the product directly to get a full refund. We promise to provide every buyer who has bought this toothbrush, provide 180-day free unconditional return and refund service.The toothbrush designed to bend and then straighten, actively penetrates between teeth to lift and remove plaque. Its handle is easy to grasp. It helps remove food particles and plaque from your tongue, leaving your mouth feeling fresh. This toothbrush has extensive contact with the teeth and greatly reduces oral irritation. Soft bristles reach between the gum line to remove food particles and plaque and gently massage the gums. The bristles and handle colors can be customized according to your needs, and you can also customize as well as the logo. Dentists recommend replacing your toothbrush every 3 months or sooner if bristles are worn.