I am unaware of the product's characteristics. I have high hopes that I will have a good experience once I get them. I'll just lay out the facts so prospective buyers can get a feel for what might be in store for them in terms of distribution: Feb 21 - paid full price via Venmo, including an extra $30 for shipping Mar 5 - I contacted the person I paid via Vehmo asking for an update Mar 5 - they got back to me and said it would go out (three days select) Mar 9 - I told them I had not received them, despite 3 days having come and gone Mar 9 - they sent me via email an update from USPS showing the product would arrive Mar 12 Mar 10 - today: hoping it arrives early next week To be fair, their shipping policy says 3 - 15 business days; so we're still within that (barely). But really not a good experience in terms of shipping.