The SEVA KLASIK - Jednička kit contains 222 pieces and is ideal for the first acquaintance. You will find basic pieces in it and those who do not know SEVU will learn to connect pieces. SEVA KLASIK - The number one is intended for children from 4 years of age. It complies with the European standard EN71 on toy safety and its quality is regularly checked. All SEVA kits are compatible with each other and their possibilities can be constantly expanded.