These toothbrushes are perfect for both kids and tired clubbers. Makes brushing fun and a no-brainer as the internal LED blinks for 60 seconds then turns off automatically. Once it stops flashing, you know you have brushed long enough. Bristles are soft. The toothbrush is a compact size that is great for kids or travel. Long-lasting button cell batteries are included and not replaceable for safety reasons. The toothbrush comes in various colors (sorry, no individual choice of color), all with a red LED light.