Acer is taking an interesting approach to durability with four Chromebooks it announced today. Specifically, the kid-focused laptops’ keyboards are designed to be hard to damage.

The Chromebook 512 (C852), Chromebook 511 (C734/C734T), Chromebook 314 (C934/C934T), and Chromebook Spin 311 (R722T/R723T) join Acer’s education-focused machines with keyboards featuring “mechanically anchored keys.” According to the company, that makes it difficult for users—especially curious young students—to rip keys out of the laptops, while still offering keyboards that are easy to repair or replace.

Diagram of the ridge. (credit: Acer)

An Acer spokesperson further explained the keyboard to Ars, saying that a ridge under each key makes it difficult for fingers to get under and pop it out.