... .2. Electrical mosquito-repellent incense, poisonless and smokeless, keeps your children safe and sound.3. Burning time:6~9hours of each coil; 4. Diameter ... 138mmWe supply sandalwood scent smokeless fly insence coils,repellent insence,mosquito repellent,mosquito incense coils,mosquito coils,mosquito coil incense,aerosol can valve,aerosol pesticide,aerosol filling equipments ...