MATHS WHIZZ - JUNIOR SIZE - Includes express delivery! 50 pcs - JUNIOR Size - 180mm x 12mm x 2mm - Ideal for Primary Schools. £49.99 Quantity: at £49.99 each Add To Basket JUNIOR SIZE x 50 pcs. Ideal for primary schools. 'Maths Whizz' reward wristbands help endorse good work ethic, achievement and encourange students of all levels. Other sizes available. Prices include express delivery to the UK Mainland.