High quality ETook ET155L Electric Scooter / Bike Chain Lock Keep your electric scooter secure with a heavy duty lock from ETook. The ETook ET155L features a heavy duty steel chain which is resistant to cutting and sawing. Cloth cover over the chain protects your e scooter's paint and helps resist wear and water. The chair is 1000mm long to give you ample length to lock your e scooter to secure structures and is made from 7mm diameter steel links for extra security. Security level rating: 4/6.