Leigh Halfpenny believes there is "plenty more to come" from Wales as they prepare for next Saturday's Triple Crown bid at Twickenham.
Wales will take a firm grip on this season's RBS 6 Nations Championship if they can claim only a second Twickenham victory since 1988.
A third successive tournament win would not only secure a 20th championship Triple Crown, but also leave them two more victories away from collecting a second Six Nations title and Grand Slam of coach Warren Gatland's four-year reign.
Wales have racked up 50 points and six tries in defeating Ireland and Scotland, form which has seen them installed as firm favourites to send England packing.
"The squad we have is tremendously talented - it is a special one to be a part of," Wales full-back Halfpenny said.
"When I was growing up I watched Wales lose many times at Twickenham, and sometimes quite heavily, but everyone has put in the hard yards and our training camp in Poland last month has given us toughness to go with talent.
"We know we can get a result, but we also know how hard it will be.
"We have won two from two in the Six Nations, but we cannot get carried away. There is a long way to go.
"It shows where we are at at the moment in that we have been able to overcome the loss of a number of players through injuries. We have strength in depth, and that is a key to winning campaigns."
One of England's biggest tasks will be trying to stop a giant-sized Wales back division containing the likes of Alex Cuthbert (6ft 6in), George North (6ft 4in), Jamie Roberts (6ft 4in) and Mike Phillips (6ft 3in).
Halfpenny, in comparison, is the small guy, although in size rather than stature following his match-winning exploits against Ireland and Scotland.
"It is great to be surrounded by so many big and talented players. It gives you a bit of confidence as the small guy," he said.
"I try and get myself involved. Their size gets us over the gain-line, but we are all working hard on our skills.
"We know we are in for a tough contest at Twickenham. They will be eager to do well in their first home match of this season's Six Nations.
"England have had two good wins away from home when they had to dig deep, and that is why we know it will be hard.
"You have to have belief, and we know we have to get a result. The victory in Dublin made us even stronger. When you are at a low point in a game and you come out on top it really brings a team together and makes you better as a unit."