With the development of science and technology. the accuracy requirements for solving engineering problems are getting stricter than before. Most structural design optimization problems in civil and mechanical engineering have proven to be the non-deterministic polynomial hard problems. The artificial bee colony (ABC) algorithm has been proven to be an effective method of design optim... https://www.roneverhart.com/Easton-Black-Magic-2-0-Catcher-s-Box-Set-Youth/