- Casing: pressed steel, bolted wheel axle, zinc plated and chromated.
- Wheels: ALST tread: Blickle Softhane®, die cast, colour green, non-marking, very good rolling characteristics due to particularly wide, elastic tread, 75° Shore A, elastic, wear-resistant, highly resistant to notches and grooves, no surface discolouration, spares the floor, low noise, minimal rolling friction, very good chemical bonding to the rim.
- Rims: cast aluminium, corrosion-resistant, with ball bearing.
- Additional remark for size description:
- K = ball bearing.