Seria Connecting Rails Set A x 1 Set B x 1 2-piece set Size Set A Approx. 5.5 x 4 x 1.2 cm Approx. 4.9 x 4 x 1.2 cm 2 pieces each Set B Approx. 5.5 x 4 x 1.2 cm Approx. 4.9 x 4 x 1.2 cm Approx. 9.7 x 8.8 x 1.2 cm 1 piece each Age Recommendation: 6 years and up Connects plastic Plarail and wooden rails such as Brio and IKEA. Can also be used alone. Some products may not be compatible. Please be aware. Brand new, unused. Instant purchase OK