Harlequins maintained their unbeaten start in the Heineken Cup with a thumping win over Italian side Zebre.
Sam Smith (2), Nick Easter, Matt Hopper, Rob Buchanan and Ben Botica crossed for Quins, while there were also two penalty tries.
Zebre could only manage a first-half breakaway try by Leonardo Sarto and a late consolation for Alberto Chillon.
The bonus point win extends the English champions' lead at the top of Pool Three to six points.
With Biarritz losing to Connacht on Friday, Quins's fate is in their own hands and victory in next week's return against Zebre will effectively seal a quarter-final berth.
Zebre: Trevisan, Venditti, Pratichetti, Garcia, Sarto, Orquera, Tebaldi, Aguero, Festuccia, Ryan, Geldenhuys, Sole, Cattina, Bergamasco, Van Schalkwyk.
Replacements: Ferrarini for Trevisan (48), Chillon for Garcia (69), Buso for Aguero (48), Redolfini for Festuccia (48), Perugini for Ryan (48), Caffini for Sole (69), Giazzon for Cattina (48).
Not Used: Pace.
Sin Bin: Bergamasco (33), Redolfini (65).
Harlequins: Brown, Williams, Hopper, Casson, Smith, Evans, Care, Lambert, Gray, Johnston, Kohn, Robson, Fa'asavalu, Wallace, Easter.
Replacements: Dickson for Brown (65), Buchanan for Care (65), Marfo for Lambert (65), Botica for Gray (65), Trayfoot for Robson (70).
Not Used: Collier, Matthews, Monye.
Referee: Neil Paterson (SRFU).