Create your own Number Bug with these magnetic pieces. The Magnetic Colour Sequencing Bugs are ideal for teaching patterns and sequencing skills. Ages 3 and up.Colour Sequencing Bugs : Children select a work card and complete the sequence on their card by joining together the magnetic bug heads and body segments with a simple snap. The cards are colour coded across 3 levels and each card has a sequence consisting of 2 or 3 colours with 1 or 2 sections missing. The answer can be found on the reverse of the work card. Contents: 6 bug heads, 42 body segments and 15 double-sided work cards. Number Bugs 1-20 : Perfect for teaching numbers 1-20, this brightly coloured set includes 20 body segments numbered 1-20 and 4 bug heads. Contents: 4 bug heads and 20 body segments.