Nov design for Brompton 15mm Toolkit fits right inside your folding bike and includes the necessary tools to fix a Brompton bike. Toolkit can be placed inside Brompton frame. One set include: Stainless steel hex wrench (2, 2.5, 3, 4, 5). Titanium spanner: 15mm, 10mm, 8mm. Weight: 70g (+/-1g).