KEVA Contraptions Reactions Deluxe

Build bigger. Experiment further. Discover the excitement of chain reactions with KEVA® Contraptions Reactions Deluxe! Using more than 200 precision-crafted KEVA planks and a collection of unique reaction pieces, kids can design incredible contraptions powered by gravity, creativity and problem-solving.

No glue or connectors are needed—just stack, test and adjust as each build comes to life. Create ramps, towers, tunnels and launch points, then add exciting action elements like a trampoline, jump hoop, long tube, wrecking ball, bell and flag to keep the reactions going. Every build encourages hands-on experimentation, critical thinking and perseverance while inspiring endless open-ended play.

Whether following ideas or inventing original designs, young builders will love discovering new ways to make every chain reaction even more amazing.

Includes: 200 KEVA planks (8 purple, 4 red, 8 teal, 180 natural), 10 golden planks, 4 trampoline frame pieces, 8 rubber bands, 4 short dowels, 4 long dowels, 2 golden reaction balls, 1 long tube, 1 jump hoop, 1 wrecking ball, 1 bell, 1 flag and 2 strings.