Your search for "walk-behind mower" revealed the following:

Toro® TimeMaster® – 30in Walk‑Behind Lawn Mower | 223cc Briggs & Stratton® Engine

Ferris FW45 Walk Behind Mowers (5901892)

Toro® Super Recycler® – 21in Personal Pace® Self‑Propelled Lawn Mower | Electric Start

Toro® Recycler® – 22in Self‑Propelled High‑Wheel Lawn Mower | 150cc Briggs & Stratton® Engine

Toro GrandStand® 60 in. (152 cm) 35 hp 999cc (72512)

Ferris FW15 10.20 HP HON GXV390 CARB 32"" FAB CASTER WHEEL 5901737

Toro 60V MAX* 30 in. (76 cm) eTimeMaster® Personal Pace Auto-Drive™ Lawn Mower - (2) 10.0Ah Batteries/Chargers Included (21491)

Toro GrandStand® 52" w/ 35 HP 999cc Kawasaki FX1000 (72507)

Toro® Recycler® – 21in Self‑Propelled Lawn Mower | 140cc Briggs & Stratton® Engine

Toro 60V MAX* 22 in. (56 cm) Recycler® Personal Pace Auto-Drive™(21467)

Toro® Super Recycler® – 21in Personal Pace® Self‑Propelled Battery Lawn Mower | 60V Flex‑Force Power System®

STI RMA 348 V