Our Rubber Speed bumps are made from old recycled rubber. they all have a unlimited weight capacity and this 60mm speed bump can easily hold up to 60000KG. all speed pumps are fitted with reflectors in the mid-sections. they also have an internal steel plate which makes them more durable. The kits are sold as a complete package with everything included being needed to install the speed bumps. please notify us if you would like the fixings for concrete or tarmac.