Centurion shields are constructed from heavy duty PVC covers with foam inners, which have been designed to absorb maximum impact. The ideal training aid for building powerful legs for those game changing rucks and tackles. A fundamental play in the game of rugby. Rugby Rucking Shields Ideal for Developing Tackling Technique in Safe Practice. Heavy duty PVC covers Made from High Density Foam Inner to Reduce Impact Shock Reinforced Seams Heavy Duty 50mm Webbing Handles. Junior Rucking Shield: 20" x 12" wide