Haven't been used in a long time. Only left side works.

Tops got sellotape a while ago, for precaution before we gave them to our daughter. But we're not going to take them off now, just in case, however you can if you want.

Only white buds have been used a few times, but pink and blue buds have never been used.

Top lid is cracked as it got squashed in daughters backpack, at school as you can imagine.