The Dutch side revealed the 17-year-old was joining Wolves at the start of this month and Wolves officially confirmed the transfer on Friday.
The right-footed centre-back will initially link-up with Steve Davis’ under-18 side and Sellars says Lonwijk has all of the attributes they look for in a defender.
He said: “We’re continually looking for talented young players – it’s very much the plan of the football club.
“To be able to get somebody of Nigel’s quality across the line was really pleasing and we’re delighted with the signing.
“He’s very good physically, a good defender one-on-one, and has strong technical ability, so we very much see him fitting into how our system as an outside centre-back. He’s got good physicality as well, so ticks the boxes in many of the things we’re looking for in terms of our centre-back positions.”
And Sellars says Lonwijk will have an opportunity to progress to the under-23 group and further as he stressed the club’s desire to build a pathway to the first team. He said: “If Nigel settles in quickly, progresses and shows the quality in his performances to be pushed up then we’re certainly a club that has no problem in challenging our young players and giving them an opportunity with a higher age group.”
But Sellars says the academy will not put any pressure on the Dutch youngster.
He said: “Nigel needs time to settle in first; let him get to know his team-mates and his age-group, but we don’t want to put him under too much pressure.
“Once he’s settled in, we will then see where he progresses and take it from there.
“We don’t ever have a specific plan for a player, everybody is different and takes time to settle, some quicker than others. You can see that some of the boys have settled well this year, Christian Marques for example, who is already in the under-23s at 16-years-old.
“We’ve got four under-18s in our under-23s squad every game at the moment and they’re progressing really well, and that’s very much part of the philosophy here at Wolves.”