If you are unsure if you have the new (2017+) or original (2013-2016) model of L-Boxx, open the lid: if the locking latch for the stacking system stays in place, you have the original L-Boxx. If the latch is on the lid, you have the new L-Boxx. This insert pack contains two inserts that fit the following toolboxes: Sortimo L-Boxx 102 Sortimo L-Boxx 136 Sortimo L-Boxx 238 Sortimo L-Boxx 374 All Sortimo Foam Inserts are made from Shadow Foam, so organising your tools is as simple as: cut and peel. UV Resistance ensure the colours stay vibrant Made from 100% polyethylene foam, making off-cuts recyclable (where available) HCFC Free and odourless means no strong chemical or solvent smells Protect items from impact whilst keeping them organised Resistance to water and common chemicals Easy to clean, simply wipe off any mess (oil, grease etc.)